The Werner 32-foot Type 1A 300-pound duty rating fiberglass flat D-rung extension ladder has internal guides at the bottom of the fly section for secure interlocking of the fiberglass rails. Aluminum construction and a traction-tred feature keeps the rungs durable while ensuring a secure footing, while the rail shield bracket and shu-lok feature resist slipping. The base and fly sections are easily separated to use the base as a single ladder. This ladder's exclusive Alflo rung joint connections prevent twisting, molded end caps protect work surfaces from damage, and the heavy-duty pulley with rope makes height adjustment easier. The pre-pierced holes of this ladder makes for easy field installation of accessories.